RT/F3 E1/E2/E3 Type Axle Counter Cable
Application
The cables are designed for transmission of signals up to 90 kHz in axle counter train detection systems.
Reference Standards
Cable Construction
| Conductors |
Tinned copper, 0.9/1.4 mm nominal diameter. |
| Insulation |
Solid polyethylene. |
| Cabling Element |
Two insulated conductors are twisted together to form a pair. |
| Stranding |
Pairs are helically stranded in concentric layers. |
| Filling |
Cable core interstices are filled with a low-permitivity compound. Unfi lled cables option can be offered upon request. |
| Core Wrapping |
Plastic tape(s) with overlapping. |
| Moisture Barrier |
One laminated sheath made of aluminium tape coated with PE Copolymer on at least one side is applied with longitudinally overlap. |
| Inner Sheath |
Polyethylene or LSZH fi re retardant compound. |
| Electrostatic Shield |
One layer of helically applied copper wires. |
| Electromagnetic Shield |
Two helically applied steel tapes. |
| Outer Sheath |
Polyethylene or LSZH fi re retardant compound. Ruggedised PE sheath compound can be offered upon request. |
Type Codes
- F1 class: Non LSZH cables.
- F5 class: Unfi lled cables
- D type: Unarmoured types
- R type: Ruggedised PE sheath
- S type: Steel tape armoured types
- B type: Brass tape armoured types
- E1, E2 & E3 types: 3 different induction protection levels available.
Electrical Characteristics at 20℃
| Nominal Conductor Diameter |
mm |
0.9 |
1.4 |
| Nominal Conductor Cross Section |
mm^2 |
0.63 |
1.5 |
| Maximum Conductor Resistance |
Ω/km |
30.0 |
12.5 |
| Minimum Insulation Resistance @500 V DC (1min) |
MΩ.km |
5000 |
5000 |
| Nominal Conductor Capacitance @800Hz/1000Hz (AC) |
nF/km |
42+3 |
47+3 |
| Dielectric Strength, conductor to screen (DC voltage 2mins) |
V |
3000 |
3000 |
| Maximum Average Attenuation |
|
|
|
| @1.0KHz |
dB/km |
0.73 |
0.45 |
| @2.4KHz |
dB/km |
1.10 |
0.62 |
| @40KHz |
dB/km |
2.88 |
1.77 |
| @90KHz |
dB/km |
3.70 |
2.41 |
| @1.024MHz |
dB/km |
11.2 |
7.45 |
| Minimum Average Near-end Crosstalk |
|
|
|
| @1.0KHz |
dB/km |
60 |
60 |
| @2.4KHz |
dB/km |
60 |
60 |
| @40KHz |
dB/km |
50 |
50 |
| @90KHz |
dB/km |
50 |
50 |
| @1.024MHz |
dB/km |
35 |
35 |
| Maximum Reduction Factor @100V/km,50Hz |
|
|
|
| EMI RF 1 (modest level) |
|
0.65 |
0.65 |
| EMI RF 2 (medium level) |
|
0.45 |
0.45 |
| EMI RF 3 (high level) |
|
0.20 |
0.20 |
Mechanical and Thermal Properties
- Minimum Bending Radius: 7.5×OD (unarmoured); 10×OD (armoured)
- Temperature Range: -30℃ to +60℃ (during operation); -10℃ to +60℃ (during installation)
Dimensions and Weight
| Cable Code |
Number of Pairs |
Nominal Sheath Thickness |
Nominal Overall Diameter |
Nominal Weight |
| Inner |
Outer |
| |
|
mm |
mm |
mm |
kg/km |
| 0.9mm Conductor , 1.8mm Insulated Wire |
| RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-2P0.9 |
2 |
2.2 |
2.4 |
23.4 |
1300 |
| RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-10P0.9 |
10 |
2.2 |
2.4 |
31.8 |
1650 |
| RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-12P0.9 |
12 |
2.2 |
2.4 |
35.0 |
1760 |
| RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-19P0.9 |
19 |
2.2 |
2.4 |
41.4 |
2275 |
| RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-24P0.9 |
24 |
2.2 |
2.4 |
44.0 |
2450 |
| 1.4mm Conductor, 2.7mm Insulated Wire |
| RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-2P1.4 |
2 |
2.2 |
2.4 |
33.6 |
1480 |
| RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-10P1.4 |
10 |
2.2 |
2.4 |
40.2 |
2200 |
| RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-12P1.4 |
12 |
2.2 |
2.4 |
42.2 |
2325 |
| RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-19P1.4 |
19 |
2.2 |
2.4 |
47.5 |
2975 |
| RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-24P1.4 |
24 |
2.2 |
2.4 |
52.5 |
3150 |
